Importance of pulsing illumination parameters in low-level-light therapy

Study Overview

Description: A study to determine whether different pulsing patterns of 630 nm LED

light affect collagen production by human fibroblasts, comparing microsecond pulsing to

continuous wave and millisecond pulsing.

Source: PubMed

Summary

Participants: Human fibroblast cultures (in vitro).

Intervention: Exposure to 630 nm LED light (8 J/cm²) using various pulsing structures

(microsecond pulses) compared to continuous wave and millisecond pulsing.

Methods: Measurement of collagen type I production.

Conclusion

Precise microsecond pulsing enhanced collagen synthesis more effectively than

continuous or traditional pulsed methods. The most effective parameters were 100 µs

pulse duration, 1000 µs interval, and a specific train structure.